Photoelectric Effect Flashcards
Red light has a low frequency. Does photoelectric effect often takes place? If not, would the phenomenon be more often when we increase the intensity of the red light?
No, it does not often take place. Increasing the intensity of the red light does not make the phenomenon more often
If we increase the intensity of blue light, a light with high frequency, will photoelectric effect be more often?
Yes. More electrons will be ejected
The electron freed in photoelectric effect is called…
Photoelectron
How many electrons can one photon free?
One. The ratio is always 1 to 1
What is the work function? Is it the same for every metal?
The minimum amount of energy needed to free one electron.
It is unique for every metal
There is an equation for finding the kinetic energy or speed of the electron freed, it is…
E(photon)= work function + KE of electron
